MBA Instruments MLA 900, Руководство по эксплуатации

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10 MLA 900 Operating Instructions V 2.0 8011381 © MBA Instruments GmbH
Notes on application
2.2.2
Approval for the MLA 900
Approved area of application
The MLA 900 is approved for use in hazardous locations in which inflammable gases,
vapours or mists may occur (EEx ia IIB T6). The MLA 900 measuring probe is approved for
use in Zone 0, the display unit for use in Zone 1.
Prescribed operating conditions
The following applies for the use of the MLA 900 conductivity meter in the area of
application as defined in the »Ordinance on electrical appliances in hazardous locations
(ElexV)«:
WARNUNG: Hazards in explosions-hazardous locations
●
The MLA 900 is intended exclusively for mobile use at different locations.
●
The measuring probe of the MLA 900 is approved for use in containers for
inflammable liquids (Hazardous Location Zone 0).
●
The display unit of the MLA 900 may only be used in Hazardous Location
Zone 1.
●
The measuring probe may only be used in such liquids against which the
materials of which it is made offer adequate chemical resistance (
→
S. 8,
§2.1.2 ).
●
Damaged measuring probes may not be used in Zone 0.
●
Before the measuring probe is taken to Zone 0, all plug and threaded cable
connections must be checked.
●
The measuring probe may only be used with the appropriate display unit.
●
Before the measuring probe is lowered into the liquid container (tank), the
ground clamp of the display unit must be connected to the container to
equalize the electric potentials.
Approval document
→
S. 36